Identification_Information:
  Citation:
    Citation_Information:
      Originator: U.S. Fish and Wildlife Service
      Originator: Dr. Robert F. Holland
      Originator: California Department of Fish and Game
      Publication_Date: 199806
      Title: Central Valley Vernal Pool Complexes (Holland)
      Geospatial_Data_Presentation_Form: vector digital data
      Online_Linkage: \\Molib01\GIS_Library\Natural_Resources\Wetlands\Central_Valley_Vernal_Pool_Complexes\usfwsvp2
  Description:
    Abstract:
      This is a polygon layer representing existing vernal pool complexes in California's Central Valley, as identified and mapped by Dr. Robert F. Holland.   The purpose of the inventory was to map the distribution of extant CA Central Valley vernal pool complexes for use by the U.S. Fish and Wildlife Service in recovery planning for listed and sensitive species.  True color aerial slides from the Dept of Water Resources were interpreted, and vernal pool complexes were identified.  Complexes more than 40 acres in size were then digitized as polygons and given a density rating (described below). 

      This layer was created to help biologists and resource planners make informed decisions in their recovery and planning efforts.  It depicts vernal pool complexes, not individual vernal pools.   Since the minimum mapping unit of the coverage is 40 acres, it may not provide the level of detail required for larger scale (smaller area, more site-specific) conservation planning.
    Purpose: To display and analyze existing vernal pool complexes in California's Central Valley.
    Supplemental_Information:
      Converted to California Teale Albers NAD83 by the California Department of Fish and Game

      -- BEGIN ORIGINAL METADATA - THIS INFORMATION MAY NOT BE CURRENT --

      CALIFORNIA DEPARTMENT OF FISH AND GAME
      HABITAT CONSERVATION DIVISION
      WETLANDS INVENTORY AND CONSERVATION UNIT (WICU)

      METADATA FOR HOLLAND'S CENTRAL VALLEY VERNAL POOLS COVERAGE
      
      LICENSE AGREEMENT AND PROTOCOL FOR DISTRIBUTION
      

      1) By registering, downloading, and/or otherwise accepting this data-set, the user agrees to abide by all terms and conditions listed herein.

      1) This data-set is not intended for regulatory purposes and may not be used for such purposes.

      1) This data-set may not be redistributed without prior written approval from the California Department of Fish and Game, W.I.C.U. coordinator (Mr. Joe Carboni : 916/324-1414).

      1) Graphic or textual representation of data shall include appropriate references to sources including author, the U.S. Fish and Wildlife Service (USFWS) and the California Department of Fish and Game (CDFG).

      1) Data shall not be amended, edited, or revised in any manner or used inappropriately to produce inaccurate, incomplete, or misleading analyses, reports, maps, or related products.

      1) All rights in data remain the property of the U.S. Fish and Wildlife Service and USFWS reserves the right to revoke use privileges at any time. 

      


      SUMMARY

      This Arc/Info coverage is a polygon layer of vernal pool complexes greater than 40 acres in size for 29 counties throughout the greater Central Valley, and some north bay counties.  In 1995, Dr. Robert F. Holland identified the complexes on aerial photos (the most recent available for each county) and traced the polygons onto USGS 7.5' quads from which they were digitized.  Vernal pool complexes were then given a density rating.  The coverage was refined in June of 1998, with SPOT Imagery and recent U2 (low-flying aircraft) photography. The layer does not contain delineations of individual vernal pools and was not intended for use in wetland delineations. 


      FULL METADATA (DRAFT)

      COVERAGE NAME: usfwsvp2
      COVERAGE DATE: June 22nd, 1998
      METADATA FILE: vpool_meta.txt
      METADATA DATE: August, 1998



      COVERAGE DESCRIPTION:

      The VERNAL POOLS coverage (USFWSVP) is a polygon coverage representing existing vernal 
      pool complexes in California's Central Valley, as identified and mapped by Dr. Robert F. Holland.   The purpose of the inventory was to map the distribution of extant CA Central Valley vernal pool complexes for use by the U.S. Fish and Wildlife Service in recovery planning for listed and sensitive species.  True color aerial slides from the Dept of Water Resources were interpreted, and vernal pool complexes were identified.  Complexes more than 40 acres in size were then digitized as polygons and given a density rating (described below). 

      This coverage was created to help biologists and resource planners make informed decisions in their recovery and planning efforts.  It depicts vernal pool complexes, not individual vernal pools.   Since the minimum mapping unit of the coverage is 40 acres, it may not provide the level of detail required for larger scale (smaller area, more site-specific) conservation planning. 

      The coverage was created using the Arc/Info command `CREATE', using an existing coverage as a template for cartographic parameters.   After the initial setup of the coverage for data input, vernal pool polygon complexes were digitized into the G.I.S database. The coverage was then built, the tolerances set and the attribute fields added. The polygon boundaries were refined by Dr. Holland by reviewing U2 (low-flying aircraft) photographs and 1:130,000 scale paper plots of the original data laid over SPOT Imagery.  The changes were then edited in the G.I.S. database.

      VITAL STATISTICS: 
      
      Datum:                       		NAD 27
      Projection:                  	Albers
      Units:                       		Meters
      1st Std. Parallel:      		34 00 00 (34.0 degrees N)
      2nd Std. Parallel:       		40 30 00 (40.5 degrees N)
      Longitude of Origin:		-120 00 00 (120.0 degrees W)
      Latitude of Origin:    		00 00 00 (0.0 degrees)
      False Easting (X shift):    	0
      False Northing (Y shift):    	-4,000,000 
      Source:                      		Department of Fish and Game
      Source Media: 		paper maps              
      Source Projection: 		Teale Albers         
      Source Units: 			meters            
      Source Scale:                	1:24,000
      Capture Method:             	Digitized
      Conversion Software:         	ARC/INFO rev. 6.1.1
      Data Structure:              	Vector
      ARC/INFO Coverage Type:   Polygon
      ARC/INFO Precision:          	Double
      ARC/INFO Tolerances:	fuzzy = .002V
      Number of Features:		1918
      Layer Size:			1.92 MB
      Data Updated: 		June, 1998
      

      DATA DICTIONARY:
      
      Non-standard POLYGON attribute fields:
      
      COLUMN   ITEM NAME     WIDTH   TYPE  
      ---------------------------------------------------------
      
      49		QUAD_NAME	20	C	
      69		LUCODEOLD	1	N
      70		DATEOLD		4	N
      74		COUNTY		20	C
      94		LUCODENEW	1	N
      95		DATENEW		4	N

      NOTE: Items common to all POLYGON coverages: AREA,   
      PERIMETER, USFWSVP# and USFWSVP-ID are not described here.

      Description of items (fields): 
      
      QUADNAME: Name of USGS quadrangle (24K) where data were originally digitized from.

      LUCODEOLD: There are nine fields, marked 1-9.
      
      Cut_Out = 0
      Density Index = 1
      Density Index = 2
      Density Index = 3
      Cultivated = 4
      Developed  = 5
      Mitigated Site = 6
      Extirpated = 7
      Disturbed DI 1 = 8 (disturbed vernal pool/density index of 1)
      Disturbed DI 2 = 9 (disturbed vernal pool/density index of 2)

      Density Indexes Described

      0 = CUT_OUT.  These polygons are 'do-nut' holes within vernal pool complexes; e.g. a 
      cultivated feld surrounded by habitat.

      1 = LOW DENSITY.  Pools are small, widely and patchily scattered.  At least 2
      pools and usually 5 or more exist within the delineated complex.

      2 = MEDIUM DENSITY.  Pools are larger, more numerous, and more pervasively
      scattered, but still patchy within the delineated complex.

      3 = HIGH DENSITY.  Pools are all sizes and numerous.  Pools are distributed over
      the entire delineated vernal pool complex.  Also includes large, isolated playa-like pools.
      
      4 = CULTIVATED.  Pools are present and persist in spite of obvious cultivation, 
      usually of hay crops.

      5 = DEVELOPED.  Pools are present and still visible in spite of subdivision into parcels smaller than minimum mapping size.

      6 = MITIGATED SITE.  The site is a mitigated area consisting within a vernal pool
      complex. (Not used in this project)

      7 =EXTIRPATED.  Pools were present in earlier photos, but were gone in 1997 U2 
      flight photos..

      8 = DISTURBED DI 1.  This is a polygon/delineated complex that is fits the criteria 
      of 'density index of 1', but that is disturbed in some way or form.

      9 = DISTURBED DI 2.  This is a polygon/delineated complex that is fits the criteria
      of 'density index of 2', but that is disturbed in some way or form.

      DATEOLD:  This is the year of the photographs used for each county in the original 1995 aerial photo interpretation.

      COUNTY:   This is the county in which the polygon is contained.

      LUCODENEW: These are 1997-1998 updates of LUCODEOLD, especially where land use changes have taken place.

      DATENEW: This is the year the check was done with SPOT Imagery and U2 photography.

      DATA QUALITY ASSESSMENT

      This coverage depicts vernal pool complexes, not individual vernal pools.  The density ratings are subjective but were validated with actual point occurrence data of individual vernal pools.  (For a copy of the paper "A Comparison of Two Methods for Mapping Vernal Pools" contact Monica Parisi, Wildlife Biologist at (916) 657-4341 or e-mail   The validation suggested that 1.) dense complexes of vernal pools were being picked up by aerial photo interpretation and 2.) the density ratings should not be the sole basis for identifying high priority preserve areas, especially at the local planning level. At the local level,  this layer is probably best used for suggesting new areas for regional preserves, areas which may never have been considered because of a lack of information.


      DATA CONTACTS

      Please contact one of the individuals below for questions about the data or for a copy of  "Mapping Project for the Vernal Pool Recovery Plan Methodology", a report by Dr. Robert F. Holland to the U.S. Fish and Wildlife Service (January, 1996).

      Craig Turner, Research Analyst (G.I.S)
      Phone: (916) 324-8298
      E-mail: cturner@dfg.ca.gov

      Kari Lewis, Land Conservation Planner
      Phone: (916) 322-1869
      E-mail: klewis@dfg.ca.gov

      California Department of Fish and Game
      Natural Heritage Division
      1807 `13th' street, Sacramento 95814.

      -- END ORIGINAL METADATA --
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 199806
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -123.034784
      East_Bounding_Coordinate: -118.310884
      North_Bounding_Coordinate: 40.706928
      South_Bounding_Coordinate: 35.115785
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: none
      Theme_Keyword: vernal pool complexes
      Theme_Keyword: biota
      Theme_Keyword: natural resources
      Theme_Keyword: environment
    Place:
      Place_Keyword_Thesaurus: none
      Place_Keyword: California
      Place_Keyword: Central valley
  Access_Constraints: none
  Use_Constraints: certain limitations apply - review metadata for further information
  Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
  Lineage:
    Process_Step:
      Process_Description: Metadata imported.
      Source_Used_Citation_Abbreviation: D:\metadata_kw\metadata.xml
    Process_Step:
      Process_Description: Dataset copied.
      Source_Used_Citation_Abbreviation: s:\natural_resources\wetlands\usfwsvp2
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete chain
      Point_and_Vector_Object_Count: 2828
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Label point
      Point_and_Vector_Object_Count: 1918
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
      Point_and_Vector_Object_Count: 1918
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Point
      Point_and_Vector_Object_Count: 309
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Albers Conical Equal Area
        Albers_Conical_Equal_Area:
          Standard_Parallel: 34.000000
          Standard_Parallel: 40.500000
          Longitude_of_Central_Meridian: -120.000000
          Latitude_of_Projection_Origin: 0.000000
          False_Easting: 0.000000
          False_Northing: -4000000.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 0.001024
          Ordinate_Resolution: 0.001024
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: usfwsvp2.aat
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: FNODE#
      Attribute_Definition: Internal node number for the beginning of an arc (from-node).
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: TNODE#
      Attribute_Definition: Internal node number for the end of an arc (to-node).
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: LPOLY#
      Attribute_Definition: Internal node number for the left polygon.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: RPOLY#
      Attribute_Definition: Internal node number for the right polygon.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: LENGTH
      Attribute_Definition: Length of feature in internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: USFWSVP2#
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: USFWSVP2-ID
      Attribute_Definition: User-defined feature number.
      Attribute_Definition_Source: ESRI
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: usfwsvp2.pat
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: AREA
      Attribute_Definition: Area of feature in internal units squared.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: PERIMETER
      Attribute_Definition: Perimeter of feature in internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: USFWSVP2#
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: USFWSVP2-ID
      Attribute_Definition: User-defined feature number.
      Attribute_Definition_Source: ESRI
    Attribute:
      Attribute_Label: QUAD_NAME
    Attribute:
      Attribute_Label: LUCODEOLD
    Attribute:
      Attribute_Label: DATEOLD
    Attribute:
      Attribute_Label: COUNTY
    Attribute:
      Attribute_Label: LUCODENEW
    Attribute:
      Attribute_Label: DATENEW
Distribution_Information:
  Resource_Description: Downloadable Data
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Transfer_Size: 2.228
Metadata_Reference_Information:
  Metadata_Date: 20030929
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: California Department of Fish and Game
        Contact_Person: GIS Service Center
      Contact_Address:
      Contact_Electronic_Mail_Address: geodata@dfg.ca.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
